66. James D. Robinson IV and Stuart Ellman

James and Stuart founded RRE Ventures in 1994, an $850 million NY-based VC firm that backs early-stage digital startups like one of this year's bright spots, online storage firm Drop.io-- RRE led a $2.7 million Series A in March. A former i-banker at JP Morgan, James is a director at some of RRE's other portfolio companies like mobile ordering startup GoMobo, software firm Adaptive Blue and mobile-money-sender m-Via. Stuart, who has worked for McKinsey and Morgan Stanley, sits on the boards of several influential startups like Drop.io, Betaworks, Recyclebank and Storm.